conf change: s/set-point/setpoint/

Remove the dash from set-point, such that it's one word: setpoint.

Change-Id: I4c3033f3c2432a53d850e8f5defbe2ac1510daf8
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/examples/swampd.conf b/examples/swampd.conf
index 0866c5b..d1aeebb 100644
--- a/examples/swampd.conf
+++ b/examples/swampd.conf
@@ -73,7 +73,7 @@
           "fan7",
           "fan8"
         )
-        set-point = 90.0
+        setpoint = 90.0
         pid = {
           samplePeriod = 0.1
           proportionalCoeff = 0.01